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| 0000949157-20-000057-index.html | 2020-04-30 16:08:17 | |
| 0000949157-20-000057.txt | 2020-04-30 16:08:17 | |
 0000949157-20-000057-xbrl.zip | 36148 | 2020-04-30 16:08:17 |
| a20200331q18-k.htm | 45739 | 2020-04-30 16:08:17 |
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 centuryheaderlogoa52.jpg | 7822 | 2020-04-30 16:08:17 |
 centuryheaderlogoa55.jpg | 7822 | 2020-04-30 16:08:17 |
| cenx-20200430.xsd | 4531 | 2020-04-30 16:08:17 |
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| exhibit99120200331q1ea.htm | 319204 | 2020-04-30 16:08:17 |
| FilingSummary.xml | 1890 | 2020-04-30 16:08:17 |
| Financial_Report.xlsx | 5832 | 2020-04-30 16:08:17 |
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| R1.htm | 40188 | 2020-04-30 16:08:17 |
| report.css | 2767 | 2020-04-30 16:08:17 |
| Show.js | 1085 | 2020-04-30 16:08:17 |